198014720

素因数分解:

$2^8\times 5^1\times {\mathrm{154699}}^1$

素因数の和:154720

約数の個数: 36

約数和(自身を含む): 474310200

約数和(自身を除く): 276295480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 154699, 309398, 618796, 773495, 1237592, 1546990, 2475184, 3093980, 4950368, 6187960, 9900736, 12375920, 19801472, 24751840, 39602944, 49503680, 99007360, 198014720]

約数ペア:

[(1, 198014720), (2, 99007360), (4, 49503680), (5, 39602944), (8, 24751840), (10, 19801472), (16, 12375920), (20, 9900736), (32, 6187960), (40, 4950368), (64, 3093980), (80, 2475184), (128, 1546990), (160, 1237592), (256, 773495), (320, 618796), (640, 309398), (1280, 154699)]